11The factory used 65 percent of the raw materials, the rest of which（）saved for other purposes.
A.is
B.are
C.was
D.were
开始考试练习点击查看答案12Listening to loud music at rock concerts（）caused hearing loss in some teenagers.
A.is
B.are
C.has
D.have
开始考试练习点击查看答案13Such poets as Shakespeare（）widely read, of whose works, however, some difficult to understand.
A.are; are
B.is; is
C.are; is
D.is: are
开始考试练习点击查看答案14Barbara is easy to recognize as she's the only one of the women who（）evening dress.
A.wear
B.wears
C.has worn
D.have worn
开始考试练习点击查看答案15The number of foreign students attending Chinese universities（）rising steadily since 1990.
A.is
B.are
C.has been
D.have been
开始考试练习点击查看答案16It is reported that the floods have left about（）people homeless.
A.two thousand
B.two-thousands
C.two thousands
D.two thousands of
开始考试练习点击查看答案17She went to the bookstore and bought（）.
A.dozen books
B.dozens books
C.dozen of books
D.dozens of books
开始考试练习点击查看答案18The company had about 20 notebook computers but only one -third（）used regularly. Now we have 60 working all day long.
A.is
B.are
C.was
D.were
开始考试练习点击查看答案19Most of what has been said about the Smiths（）also true of the Johnsons.
A.are
B.is
C.being
D.to he
开始考试练习点击查看答案20A poet and artist（）coming to speak to us about Chinese literature and painting tomorrow afternoon.
A.is
B.are
C.was
D.were
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